Lathing-securing tack-strip.



A. H. GILMORE.

LATHING SECURING TACK STRIP.

APPLICATION FILED AUG. 11, 1911.

1,023,837, Patented Apr. 23, 1912.

[NVENTOR WITNESSES: C cg W B y Afforneys COLUMBIA PLANOGRAPH CO?WASHINGTON, D. C

UNITED STATES PATENT OFFICE.

ALMER HOMER GILMORE, OF SEATTLE, WASHINGTON.

LATHING-SEC-URING TACK-STRIP.

To allwhom.z't1nay concern Be it known that I, ALMER HOMER GIL- MORE, acitizen of the United States, residing at Seattle, in the county of Kingand State of \Vashington, have invented certain new and usefulImprovements in Lathing- Securing Tack-Strips; and I do hereby declarethe following to be a full, clear, and exact description of theinvention, such as will enable others skilled in the art to which itappertains to make and use the same.

This invention relates to lathing tack strips, and more particularly totack strips for securing wire screen lathing in place.

An object of the invention is to provide a continuous wire constructedto present tacks at spaced intervals to be used for securing screen orsheet lathing, the portions of this wire strip between the tackspressing and tightly holding the lathing in position between theportions penetrated by the tacks.

Another object is to provide lathing securing means of the above type bythe use of which the work of securing lathing may be performed in aboutone-half the length of time now required for such work.

Another object is to provide tack strips of the above stated characterwhich may be manufactured cheaply and in any lengths desired, and mayalso be readily removed if required.

Another object is to provide a tack strip of this character, the tacksbeing formed by looping the wire at suitable points and forming a tonguedirected outwardly, one-half of each tack to be pressed around and intothe other half of the tack as said halves are pressed together, thetongues to hold the parts tightly together and to act as a lock when thetacks are spread by the last blow thereupon, thus preventing the tacksfrom working out of place.

Another object is to produce a tack strip of the above stated character,the tongues being formed thereon by applying pressure to the oppositesides of the strip at the points at which the tongues are to be formed,forcing a portion of the metal outward of the above end of the strip andthus producing the tongues, the tongues likewise displacing a part ofthe metal constituting the other half of the tack, this displaced metalbeing properly distributed during the compression of the tack and theforming of the pointthereof. Other objects and advantages will beapparent from the follow- Specification of Letters Patent.

Application filed August 11, 1911.

Serial No. 643,549.

ing description taken in connection with the accompanying drawings, andit will be understood that changes may be made within the specificstructure shown and described without departing from the spirit of theinvention.

Figure l is a perspective view of the strip in blank form, showing thetongues formed thereon, Fig. 2 represents the strip after the wire hasbeen bent into loops at intervals, Fig. 3 represents the completedstrip, showing the legs of the loops pressed together and the tonguesbent around and pressed into the legs opposite these upon which they arecarried, and the tacks pointed, said tacks being circular in crosssection, and of tapering form. Fig. 4t is a fragmentary view, showing aportion of the strip and one of the tacks, round wire being used in thisinstance and the tack being of the same width throughout its length, butpointed at its end.

Referring particularly to the drawings 1 represents a. strip of wire orother suitable material which has formed thereon the tongues 2 which areproduced by pressing the strip at the opposite sides at spaceddistances, and thus displacing a portion of the material and forcing thesame outwardly at right angles to the strip 1, as will be readilyunderstood.

At certain points the wire 1 is looped, each tongue 2 being at such apoint along the wire 1 as to extend outwardly from a portion aboutmidway the length of one of the legs 3 of a loop, (when the loops areformed) it being understood that the legs are parallel and joined attheir lower ends by the curved portion 4. The legs 3 of each loop arethen pressed tightly together and each tongue 2 bent around the legopposite to the one to which it extends and a pressure applied thereto.The pressure applied to the loops is of such force or degree as to pressthe tongues 2 into the legs around which they are wrapped, displacing aportion of the material, the loops at the same time (under such greatpressure) assuming the form shown in Fig. 3, to produce the tacks ofcircular form in cross section and tapering to fine points. In finishedform the rounded connected portion 4 of each loop becomes the point of atack, the legs 3 forming the body portion of the tapering tack.

It will be clearly understood that the strip may be of any form desiredand that any Patented Apr. 23, 1912.

number of tacks may be produced along its length. The strip shown inFigs. 1 to 3 is illustrated as having one side flattened. This, however,is not essential as the wire may be of any form desired in crosssection.

In Fig. l I have shown a portion of a wire strip 5, circular in crosssection and looped in a manner similar to that just de scribed inconnection with Figs. 1 to 3 inclusive. The legs 6 of each loop, in thisinstance, are also pressed tightly together and I have eliminated thetongue shown in the first form. In this second form the tack produced bypressing the le s (3 together is of the same thickness throughout itslength instead of being tapered, and the connecting portion 7 (servingto connect the lower ends of the legs 6) is beveled or sharpened, toform the point of the tack. This is simply a modification of thepreferred form.

It will be seen that this tack strip may be employed for variouspurposes, but is especially adapted for securing lathing in position,particularly wire screen lathing or other lathing in sheet form. It willalso be evident that the tacks will displace the fiber of the materialwhich they penetrate and will not be liable to work out. It will also beseen that the last blow upon the strip, at the junction of the legs ofthe loops, will tend to spread or separate said legs and tighten thetacks within the material. It will also be understood that theseparating of the legs 3, in the preferred form, will force the tonguesaway from the legs around which they are wrapped and leave them free tobite into the fibers and prevent the casual withdrawal of the tacks.

It will be apparent that this tacking strip may be readily and cheaplymanufactured and will be a great saving of time, labor and expense.

l Vhat is claimed is:

l. A lathing securing tack strip formed of a continuous wire looped toform parallel logs, the lower ends of said legs being pointed, and atongue carried by one leg and extending around and disposedsubstantially flush with the other leg to lock said legs together.

2. A tack strip composed of a continuous wire having tongues pressedoutwardly thereof, said wire being looped adjacent the tongues intopairs of parallel legs, the lower ends of said pairs of legs beingpointed, each of the tongues being integral with one leg of each pair oflegs and surrounding and embedded in the opposite leg, each pair of legsconstituting a tack tapering to a sharp point, said tacks being ofcircular form in cross section.

In testimony whereof I have signed my name to this specification in thepresence of two subscribing witnesses.

ALMER HOMER- GILMORE.

\Vitnesses F. E. KNowLns, CHARLES H. MILLER.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents, Washington, I). 0.

